Dr. Tomas Ryska

MANAGING DIRECTOR, ASTRASANA CZECH
A social and medical anthropologist, academic stuff member at the University of Economics in Prague and CEMS, co-founder of the Swiss holding company Astrasana Holding AG, and director of the Czech companies Astrasana Czech and Releaf. He has been studying cannabis for nearly thirty years. Between 2014 and 2017, he led a research project for the Czech Academy of Sciences, scrutinizing the complex relationships between biomedical practices and cannabis treatment.

Attend Cannabis Europa London 2026

26–27 May 2026 · The Barbican, London · Europe's leading cannabis industry conference

General Release

£444
Price rises 1 May 2026
  • 2-Day Conference & Expo access
  • Full expo floor access
  • Digital networking app
  • All talks & presentations
  • Hot buffet lunch
  • Pre-bookable meeting rooms
  • Exclusive roundtables & insights
  • VIP Drinks, Barbican Conservatory
  • BoC Awards entry

BoC Awards

£50
Evening add-on · 26 May
  • Conference & Expo access
  • Daytime programme
  • Business of Cannabis Awards ceremony
  • Tuesday 26 May, 19:00–00:00
  • Rivington Street, London EC2A
  • Included free with VIP ticket
Working with Prohibition Partners for Cannabis Europa has been an absolute pleasure. Their dedication, exceptional professionalism, and collaborative spirit have made a meaningful difference, and we sincerely value their support.
Vladimir Kofcegarski, CEO, PHCANN
Vladimir Kofcegarski Chief Executive Officer, PHCANN
We were truly honoured to sponsor the VIP Lounge and be part of an event that continues to set the standard for meaningful dialogue and progress in the medical cannabis industry. We left feeling excited and optimistic about the future.
Adriano Fernandez
Adriano Fernandez Business Development Manager

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